pseudoleukaemiapseudoleukemian.
/ˌs(j)uːdə(ʊ)l(j)uːˈkiːmɪə/, U.S. /ˈˌsudoʊˌluˈkimiə/ Medicine.
Originally: any of various forms of lymphoid neoplasia or hyperplasia in which there is no increase in lymphocytes in the peripheral blood (now disused). In later use: any of various non-malignant conditions in which there is a leukocytosis resembling that of leukaemia.
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1870 J. M. Da Costa Med. Diagnosis (ed. 3) ix. 684 As regards the symptoms, the closest similarity to leukæmia is presented by the affection described as pseudo-leukæmia or, more frequently, as Hodgkin's disease.
1926 Jrnl. Amer. Med. Assoc. 17 Apr. 1185/1 Lymphoblastoma, a name considered by some as synonymous with malignant lymphoma..may include lymphatic leukemia.., aleukemic lymphatic leukemia (pseudoleukemia, aleukemic lymphadenosis), lymphocytoma, Hodgkin's disease [etc.].
1931 Lancet 7 Feb. 285/2 The frequent occurrence [in mice] of a large spleen with or without enlarged lymph glands, and other conditions resembling those of leukaemia, or pseudoleukaemia.
1958 Ann. Surg. 148 133/2 Gastrointestinal pseudoleukemia should always be considered in the differential diagnosis of multiple polyposis.
1979 Postgrad. Med. 65 143 Even though pseudoleukemia is sometimes described as a leukemoid reaction, we believe that the term ‘pseudoleukemia’ should be reserved for more specific differentiation.
1995 Southern Med. Jrnl. 88 462 We present a case of pseudoleukemia occurring in a patient with lymphoma and pancytopenia after 2 days of treatment with granulocyte colony-stimulating factor.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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